$OpenBSD: patch-examples_tracer_py,v 1.2 2015/06/04 08:03:49 dcoppa Exp $
--- examples/tracer.py.orig	Sat Apr 25 19:41:23 2015
+++ examples/tracer.py	Thu Jun  4 09:25:06 2015
@@ -284,7 +284,7 @@ class ParallelCoordinates(Tkinter.Canvas):
 
 
 class Tracer:
-    def __init__(self, interface = 'eth0', filter = ''):
+    def __init__(self, interface = 'em0', filter = ''):
         print "Tracing interface %s with filter `%s'." % (interface, filter)
 
         self.tk = Tkinter.Tk()
